COBHAM Inline Camera Mount Broadcast Versioin User manual

Cobham Surveillance
GMS Products
1916 Palomar Oaks Way Ste 100
Carlsbad, C 92008
100-M0058X2 T: 760-496-0055
06/18/09 F: 760-496-0057
www.cobham.com/gms
The most important thing we build is trust.
User’s Manual
Inline Camera Mount
- Broadcast Version -

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T BLE OF CONTENTS
1.0 CRONYMS................................................................................................................................................................... 3
2.0 INTRODUCTION.................................................................................................................................................... 4
3.0 FRONT CONTROL PANEL OPERATION................................................................................................... 4
3.1 Menu Structure....................................................................................................................................................... 4
3.1.1 Power Up .......................................................................................................................................................... 6
3.1.2 Main Menu....................................................................................................................................................... 6
3.1.2.1 Channel Display......................................................................................................................................... 6
3.1.2.2 Enter Detail Menu Display .................................................................................................................... 6
3.1.2.3 Exit MDT-B Control Display ................................................................................................................. 7
3.1.2.4 Enter MDT-B Transmitter Display...................................................................................................... 7
3.1.3 Detail Menu..................................................................................................................................................... 7
3.1.3.1 TX COFDM MODE display..................................................................................................................... 8
3.1.3.2 TX COFDM B NDWTH display........................................................................................................... 8
3.1.3.3 TX GU RD INTERVL display................................................................................................................. 8
3.1.3.4 TX MOD FEC display................................................................................................................................ 8
3.1.3.5 TX VIDEO INPUT display....................................................................................................................... 9
3.1.3.6 TX UDIO ON display............................................................................................................................. 9
3.1.3.7 TX UDIO LEVEL display ....................................................................................................................... 9
3.1.3.8 TX UDIO G IN DJUST display ....................................................................................................10
3.1.3.9 TX B CKLIGHT display.........................................................................................................................10
3.1.3.10 EXIT DET IL MENU display...........................................................................................................11
4.0 CONNECTORS/PWR SWITCH AND LCD CONTROL PANEL.................................................... 11
4.1 RF Output ................................................................................................................................................................12
4.2 I/O...............................................................................................................................................................................12
4.3 Video Input.............................................................................................................................................................12
4.4 Power Switch.........................................................................................................................................................12
4.5 LCD Display.............................................................................................................................................................13
4.6 SDI Input (optional)............................................................................................................................................13
LIST OF T BLES
Table 1 - I/O DB-15 C nnect r Pin Out........................................................................................................... 11

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1.0 Acr nyms
This section lists and describes the various acronyms used in this document.
Name Meaning
16Q M 16-state Quadrature mplitude Modulation
64 Q M 64-state Quadrature mplitude Modulation
/V udio/Video
C-OFDM Coded Orthogonal Frequency Division Multiplexing
CVBS Color video base band signal (Composite video).
Y Luminance video
C Chromaince video
Pr Red Chromaince
Pb Blue Chromaince
FEC Forward Error Correction
MDT-B Messenger Digital Transmitter, Broadcast Version
MPEG Moving Picture Experts Group
NTSC National Television System Committee
P L Phase lternation Line
QPSK Quadrature Phase Shift Keying
RF Radio Frequency
SDI Serial Digital Interface
TX Transmitter

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2.0 Intr ducti n
The inline camera mount box is an optional housing (for the MDT-B transmitter) which mounts to a
professional /V camera. The housings are designed to use either nton Bauer or IDX batteries.
The two line LCD (liquid crystal display) provides visual readouts of transmitter frequency, analog video
lock status, COFDM mode, COFDM bandwidth, transmitter guard interval, forward error correction (FEC),
video input type, audio status, audio gain and backlight status.
In addition the front control buttons allows the most common available options (as described later in this
document) to be changed from the front panel. If necessary the transmitter can still be accessed with the
use of a PC using GMS control software through the 15-pin DB connector. Refer to MDT-B operation
manual (100-M0056, found on GMS web site www.gmsinc.com) for detailed description of the external
control software.
3.0 Fr nt C ntr l Panel Operati n
The front control panel consists of a two line LCD (liquid crystal display) and four control buttons, the
CTRL, ENTR, ↑ (up arrow), and ↓ (down arrow), see figure 1. In general, the up and down arrow buttons are
for selecting available options, the CTRL button is for moving between menus and the ENTR button is for
saving new values (as selected with the up and down arrow buttons).
Figure 1 –Front Control Panel
3.1 Menu Structure
The overall menu structure is demonstrated as a flowchart in Figure 2. Refer to this figure as the following
individual displays are explained in detail.

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Figure 2
–
Menu Flowchart

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3.1.1 Power Up
On power up the LCD displays the “GMS” logo and firmware number and then the “Initializing” display
appears. It takes approximately 35 seconds before communications is established for the first time on
power up.
↓
[Note: If communications cannot be established for some reason the LOST MDT-B COMM dis lay
a ears. Re-try establishing communications by ressing the ENTR button.]
3.1.2 Main Menu
3.1.2.1 Channel Display
The CH NNEL display appears after the front panel establishes communication with the
transmitter . In this mode when the ↑ UP or ↓ DOWN button is pressed the transmitter steps
through the available channels. The display blinks for ten seconds after releasing the button. If
ENTR button is pressed before ten seconds, the frequency changes and is stored in nonvolatile
memory. If ENTR is not pressed before ten seconds, the display will stop blinking and the
transmitter will reset to the previous frequency. In addition, on the second line of the LCD the
video type and status is displayed. If no video is detected the message “NO VIDEO INPUT” is
displayed. Note: This message does not a ly when the video in ut mode is set to SDI .The
channel display and control functions are shown below (underline words are meant to
demonstrate variables which are subject to change depending on values chosen).
UP ↑ Increment channel
DOWN ↓ Decrement channel
ENTR Saves channel
CTRL Change to ENTER DET IL MENU display
3.1.2.2 Enter Detail Menu Display
This display window allows user to enter a detail submenu in which variables such as COFDM
mode, bandwidth guard interval, FEC (forward error correction), video input type, audio parameters
and backlight options are available.
MDT-B IS
INITIALIZING
GMS RCU2000 G108
TX 2500 MHz
Composite, NTSC
Channel Display
with video

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UP ↑ No effect
DOWN ↓ No effect
ENTR Enters detail menu TX COFDM MODE display
CTRL Change to EXIT MDT-B CTRL display
3.1.2.3 Exit MDT-B Control Display
This display allows user to either return to the CH NNEL display of the main menu or exit control
of the MDT-B from the front LCD control panel. This is necessary when connecting to the camera
mount housing through the DB-15 connector with a PC using GMS control software.
UP ↑ No effect
DOWN ↓ No effect
ENTR Exits control of MDT-B and enters ENTER MDT-B
TR NSMITTER display
CTRL Returns to CH NNEL display
[Remember: If external PC control using GMS Control software is to be used you must first EXIT
MDT-B CTRL before attem ting to connect through the DB-15 connector.]
3.1.2.4 Enter MDT-B Transmitter Display
This display allows user to re-enter the CH NNEL display of the main menu and returns control to
the front LCD control panel.
UP ↑ No effect
DOWN ↓ No effect
ENTR Enters the CH NNEL display
CTRL No effect
3.1.3 Detail Menu
The detail menu presents various displays for changing available options as explained in detailed below.
When a new value is selected the TX letters in the display window will blink indicating a change is in
process. It will stop blinking after the ENTR button is pressed (saving the new value) or exiting the display
(without saving the new value) by pressing the CTRL button.
ENTER DETAIL MENU
Enter detail
menu display
EXIT MDT-B CTRL
Exit MDT
-
B CTRL
display
ENTER MDT-B
TRANSMITTER

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3.1.3.1 TX COFDM MODE display
This display allows user to choose from three available COFDM modes, QPSK, 16Q M or 64Q M.
UP ↑ Toggles between QPSK, 16Q M and 64Q M
DOWN ↓ Toggles between QPSK, 16Q M and 64Q M
ENTR Saves new value selected
CTRL Changes to the TX COFDM B NDWTH display
3.1.3.2 TX COFDM B NDWTH display
COFDM bandwidth can be adjusted from this display selecting from 6, 7 or 8 MHz.
UP ↑ Toggles between 6, 7 or 8 (MHz)
DOWN ↓ Toggles between 6, 7 or 8 (MHz)
ENTR Saves new value selected
CTRL Changes to the TX GU RD INTERVL display
3.1.3.3 TX GU RD INTERVL display
Guard interval options, 1/32, 1/16,1/8 and ¼ are selected from this display.
UP ↑ Toggles between 1/32,1/16,1/8 and 1/4
DOWN ↓ Toggles between 1/32,1/16,1/8 and 1/4
ENTR Saves new value selected
CTRL Changes to the TX MOD FEC display
3.1.3.4 TX MOD FEC display
FEC (Forward Error Correction) code rates, ½,2/3,3/4,5/6, and 7/8 are selected from this display.
UP ↑ Toggles between ½,2/3,3/4,5/6,7/8
DOWN ↓ Toggles between ½,2/3,3/4,5/6,7/8
ENTR Saves new value selected
CTRL Changes to the TX VIDEO INPUT display
TX COFDM MODE
QPSK
TX COFDM BANDWTH
8MHz
TX GUARD INTERVL
1/16
TX MOD FEC
1/2

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3.1.3.5 TX VIDEO INPUT display
vailable video input options are SDI (Serial Digital Interface), P L, NTSC w/pedestal, NTSC, S-
Video NTSC, S-Video P L, YUV NTSC and YUV P L. Depending on which input video type is
selected the video source must be connected to the proper input connectors on the housing. See
section 4.
[Note: not all in ut o tions are shown in the ull down menu boxes unless the associated
encoder rofile is loaded. For exam le if the SP@ML NTSC rofile is loaded then only NTSC
o tions a ear in the ull down menu boxes].
UP ↑
Toggles between SDI,P L,NTSC with pedestal,
NTSC, S-Video NTSC, S-VIDEO P L YUV NTSC and YUV P L
DOWN ↓ Toggles between SDI,P L,NTSC with pedestal,
NTSC, S-Video NTSC, S-VIDEO P L YUV NTSC and YUV P L
ENTR Saves new value selected
CTRL Changes to the TX UDIO ON display
3.1.3.6 TX UDIO ON display
This display allows user to turn audio ON or OFF.
UP ↑ Toggles between ON or OFF
DOWN ↓ Toggles between ON or OFF
ENTR Saves new value selected
CTRL Changes to the TX UDIO LEVEL display
3.1.3.7 TX UDIO LEVEL display
The transmitter can accept balanced audio mic or line level. This display allows user to switch
between mic or line level.
TX VIDEO INPUT
NTSC w/PEDESTAL
TX AUDIO ON

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UP ↑ Toggles between MIC or LINE
DOWN ↓ Toggles between MIC or LINE
ENTR Saves new value selected
CTRL Changes to the TX UDIO G IN DJUST display
3.1.3.8 TX UDIO G IN DJUST display
The audio gain can be adjusted with the ↑ UP and ↓ DOWN buttons. When adjusting the level the
1 letters on the left side will blink indicating that a change is in progress. If ENTR button is
pressed the gain setting is stored. If CTRL button is pressed before ENTR the audio will reset to the
previous level and the display changes to the TX B CKLIGHT display.
UP ↑ Increase audio gain
DOWN ↓ Decreases audio gain
ENTR Saves gain level selected
CTRL Changes to TX B CKLIGHT display
3.1.3.9 TX B CKLIGHT display
The backlight on the LCD display can be set to UTO or ON. UTO mode will activate when a
control panel button is activated (any button) and will stay on for approximately 5 minutes. fter 5
minutes the backlight will shut down until a control panel button is activated once again. ON mode
will leave the backlight always turned on.
UP ↑ Toggles between UTO or ON
DOWN ↓ Toggles between UTO or ON
ENTR Saves new value selected
CTRL Changes to EXIT DET IL MENU display
TX AUDIO LEVEL
LINE
AI ||||||||||||||||||||||| 50
TX BACKLIGHT
AUTO